Hello everyone, this story idea just randomly popped in my head and I like Madara so much I figured I should give this reincarnation fic a go! Hopefully you all enjoy it!

"So, you think my will ends here huh Hashirama.."

Silence, failure is what he first felt when fighting his main rival, the only shinobi that can challenge, let alone beat him.

All of his planning, goading Hashirama to a fight to the death in order to gain a piece of his chakra for his devices.

But all of this would mean for naught, despite the preparation, finding a shinobi that can carry out his will until his next revival for project tsuki no me. Just for all of it to be a scam.

Zetsu pulled a quick one on him, just for Kaguya Otsutsuki to come back.

"NO!" Madara outburst to nothingness, he refuses to be another pawn, refusing to believe what all he lived for was a lie.

Unknown to him everything around him had frozen as he manifested a new world around him as everything went blanked.

"Where am I?" In front of him he sees all of the Bijuu surrounding him, and a small figure with red hair down to her shoulders, gray skin and yellow eyes.

"We're in your mindscape, your will overcome your death." Explained the figure.

Confused, a moment he was about to be formed into Kaguya but now he's in front of a woman he never met.

"Who are you?" He asked, while the figure before him was laughing.

Angered, already felt his life had been made a mockery. "Answer me!" He demanded.

Suddenly she stopped laughing and floated closer towards him.

"I'm your true will." Puzzled by her answer, he wants her to push for more.

"Pardon me?" She elaborates.

"You were lied to, tricked into fighting for the purpose of Zetsu and his mother, but the betrayal, the disappointment caused you to slip into another realm before Kaguya's revival."

Coming to an understanding as he nods his head.

"I see, so you're my manifestation. These powers are quite fascinating, but there's more to it. This is the plane of existence for me to create my own reality. Is it not?"

She nods, "Yes, my lord. However, it's a bit tricky. This realm is just the limbo while the living world is already happening, in shorter terms you're in an alternate universe."

Amazing development, thanks to Zetsu he gave him a second chance, essentially he's the Sage of Six Paths in this universe.

But this can't be all.

"What's the risk?" Not going to be a fool again.

"Unknown my lord, but there could possibly be more Otsutsuki, or even different entities, after all, battle is what you strive for." Chuckled at that last bit.

Just then, his mind racing, observing events that are happening in this timeline, finding them quite interesting.

"Hashirama, that bastard still hasn't left me after all. But still to see his vision for peace to come to fruition kind of pisses me off."

Other changes he discovered interest him as well, going further back a figure like him appears being challenged by a figure with three faces and six arms.

Excitement in his veins, seeing how the historical events playing out, he figures he can explore even further but then something troubles him.

His will picks on his sudden disturbance. "What is it, my lord?"

"Kaguya presence is in this world somehow, the presence is weak so this must mean a reincarnation."

Trying to decipher where she's located but failed, not understanding.

"This supposed to be my world, my plaything, but why is she here?"

"Cause you can't escape reality so easily Madara."

Alert, another figure appears, in his legendary aura, horns on his head, two Rinnegan pupils with his staff on his lap, sitting down, looking at the Uchiha.

"The Sage of Six paths..but why?" More confusion.

"I'm here to challenge you, but not in a fight but a fight in wills, you see I helped create this reality, but not for you to conquer so easily but to enter it and see if your path can prevail."

Listening intently, even though he became the Juubi seeing someone as legendary as the Sage himself is still nerve chilling.

"Legends said you can do anything, even now I feel the difference in our power, yet you give me a fighting chance..why?" This must be another trick, after all he's Kaguya's son.

"Though you were corrupt, you never had a chance to fight for your own will, this is me granting you a second chance. My mother was close to being revived but your stubbornness prevented that, so she poured her chakra in this world in order to rule it."

With a tap of his staff, the elemental nations are shown, each of the five great nations is flared.

"Mother chakra is somewhere within the five great nations, but she's still hibernating inside her vessel. This is your chance at redemption."

"So you want to see what path I'll take and see who will truly win eh?" Liking where this is going.

Hagoromo nods his head, "Correct, but one thing to note is that once you reincarnate, you won't have your memories right away or they probably won't ever manifest. But that's where your will comes to play."

Glancing over at her as she smiles and bows.

"I accept your challenge, but first give me time to think, after all this vessel must be right."

Hagoromo respects his decision, with that he disperse from the two still in Madara mindscape.

Pondering on the possibility, reincarnation works in mysterious ways. His soul can manifest in a child with no knowledge of shinobi background or his worst nightmare a senju.

Thanks to his creation of all things, he's able to dictate what ancestry he can rebirth in.

Time has passed, scrounging through possible candidates he found an interesting vessel.

"I found him." His silence broke, catching his will attention.

"Master?" She suddenly questions Madara taps on the floor with his staff, showing an image of a newborn.

"This is my reincarnate, I don't have much time before his chakra establishes, so here's my instructions for you." He said carefully, leaving no details behind.

"The sage challenges me to see if my path will guide me to victory this time, I'll show not just him but everybody." Finishing his hand signs, completing the transfer.

"One more thing, your name from now on is Casca, I leave the rest up to you until my reawakening." Said the Uchiha as his body fades in pure light, entering the world of the living.

Casca bows. "Hai, Madara-sama."

Rebirth

It's been a week since the birth of Mukai, ever since the knowledge of his mother status being revealed to that of an Uchiha, both clans have been in political war over the rights of the child.

In the council chambers, between both Uchiha and Hyuga, along with the elders of the Hidden Leaf and third hokage.

Tension can be felt between the two clans, both have credible claims.

Everyone that's vital for the meeting is here, Hiruzen taking off his hat, seating it in front of him.

"Before we begin, I'd like to thank you all for joining. I hope we can get everything sorted out diplomatically, no it WILL stay diplomatic no matter the decision, anything but that is going to result in extreme punishment."

Making it clear as he glances at both parties, the clan heads bow their heads in agreement.

"Now that's out of the way, I grant you Hibaki Hyuga to start your plea."

Hibaki, stands up from his seat and bowed before he starts to speak.

"Hai, Hokage-sama. As clan head, it's my duty to ensure our clan secrets, the byakugan stays within the Hyuga."

"Unfortunately with Ginta's death and his mother dying through birth complications, I'm positive that the boy's father's dying wish is to be a part of the clan where his eye belongs."

Hiruzen, turns over to the clan head of the Uchiha.

"Kagami Uchiha, you may proceed."

Kagami bowed his head.

"Hai, Hiruzen. Friendship aside, I believe the boy belongs to the Uchiha clan. If I remember correctly, Ginta was banished from his clan due to his relationship with Orihime Uchiha."

Some of the clansmen from the Hyuga's frown at the mention of taboo.

"But we the Uchiha don't hold petty grudges over outside relationships. My ancestors made peace with the Senju through marriage thus ending the warring state period."

He looks over at Hibaki before finishing his statement.

"My point being is, we won't mistreat the boy nor would we place a seal, making him some slave."

One of the elders from the Hyuga clan slammed his fist on the desk.

"I've heard enough! You Uchiha have no right to speak of the caged bird seal, if you don't know anything about it!" Hibaki looks at the elder in disappointment.

"Hibaki-san, please control your men." Koharu ordered.

The rest of his clan calmed down the elder, as he finally sat still pissed off.

"Kagami, you claim we'll mistreat the boy but what if he can't possess the sharingan?"

Not taking the bait, he simply is calm and collected.

"If he doesn't it won't matter. Orihime was a lovely woman who made me and my clansmen proud, I'm sure the child will do the same for the Uchiha."

Stalemate between the two clan heads, silence and tension takes place until Hiruzen speaks up.

"I'll be making my decision now, but first I must say this to two parties."

"First for Hibaki-san case, you have valid points but what Kagami said is quite true, the caged bird seal would definitely be placed on the boy thanks to him not being pure blood."

"That won't be happening, after all Ginta wasn't of the Hyuga clan when Mukai was born as he was banished, so the Hyuga doesn't have any right to him."

Kagami and his fellow Uchiha smiled but kept their celebration to a minimum, while the Hyuga were upset.

"Now for you Kagami, you're right the Uchiha doesn't hold bearing towards clan affairs but one thing Uchiha have a history of doing to those who aren't full pure blood."

Sarutobi takes a smoke out of his pipe before continuing.

"They mistreat them, and that won't be happening."

"My decision is Mukai will be under my custody for the time being, until he becomes older he'll have the right to make his own decision on which family he'll belong to."

It's final as both clans were displeased but rather not fight it for now.

Danzo, the elders along with Sarutobi will remain the only ones left after the hearing.

Staring at his rival, knowing he has his opinions.

"Yes, old friend?"

"I still recommend the boy to join the root or anbu after he's older, we can use his power. His heritage alone would make for the greatest Taijutsu fighter ever."

Sighs, knowing Danzo is stuck on his ways when it comes to shinobi with potential.

"That's something we'll have to think about, after all he's only an infant, he could grow up not wanting to be a ninja nor does it guarantee he'll be talented in either regard."

Snarls at Hiruzen's answer, he is always trying to find peace with his words.

"His chakra already high for a newborn, not to mention he already have the ability to awaken his Byakug-"

"No, Danzo. I made my decision, and as Hokage I hereby end this discussion." Turning his back.

'So, we'll just have to play it ear by ear.'

"Hai, Sarutobi." The war hawk walks off, exiting the room.

5 years later

It's been five years since Mukai's been born and his potential keeps rising, in the Sarutobi clan training field he has been sparring and practicing his jutsu.

His young age, he showed that he's already a prodigy mastering the gentle fist attacking a dummy puppet.

'Two, four, eight, sixteen, thirty two!' Eight trigrams: sixty four palms was complete, destroying the puppet before him.

Disabling his Byakugan, he relaxes and heads by the bench to take a breather.

Mukai Sarutobi, adopted by Hiruzen, he's a academy student for Konohagakure.

Wearing a full black outfit consists of a robe, pants and sandals. Along with his physical appearance, he has one full on white eye showing that he's half Hyuga while his other eye is black.

Today would be another day of him being in the academy, getting ready for class which bores him to death but in the words of his adoptive father "A great ninja isn't just strength but smarts."

To that he can agree with, but why care about anything else when you have the power to take it?

In his mind there's only the adults that can contend with him, such as Hiruzen students, his father and some unknowns in the anbu.

But there was one other student he considered to be his rival and that's Minato Namikaze.

"I see you mastered 'Eight trigrams'. I'm proud of you."

There's the third hokage, smiling at his student/adopted son.

Nodding his head, now in his little frame standing up."I'm ready for the next steps in my training."

Amused by the boy's eagerness to get stronger.

"In due time Mukai-kun. You're still a child, enjoy your youth in the academy because there will be a time you won't have the luxury that you got now."

Pouting, not really caring about that, if anything he's eager to prove his worth, his goal is to be the best, despite him only being five years old, his purpose is to become the ultimate shinobi.

"Anyway, it's about time for you to head towards the academy, your class starts soon.

Nodding his head, he prepares to head out. Saying his goodbye's, he starts making his way.

Academy

Today was one of Mukai's favorite exercises, kunai practice. The goal is to hit every bullseye.

"First up, Mikoto Uchiha." Said the instructor.

Mikoto is a little girl around the same age as Mukai, her long black hair blowing in the wind, wearing a black dress with her clan logo on her back.

Grabbing from her pouch, she begins throwing the kunai in every direction, missing some marks but getting two out of four.

"Needs a little more work on accuracy but great attempt Mikoto." Trying to cheer the girl up.

Observing the girl, he sees another boy from the same clan encouraging her.

"Fugaku, your turn." The boy cracks his knuckles , eager to step up.

Once the instructor gave him signal, he quickly maneuvered in the air, throwing them simultaneously on each of the targets except one, mad at himself for missing one, he saw the instructor's approval but continued to walk aside, Mikoto congratulating him.

"Next up, Mukai Sarutobi." Everyone looks over at the prodigy whose face is stone cold as ever.

Waiting for the instructor to signal, he began without opening his eyes, he threw the kunai at the predicted directions, landing each mark getting a four out of four.

Twirling in the air, landing on his feet.

"Excellent as always, Mukai. Four out of four." Praised the instructor.

Fugaku looks at Mikoto who's impressed while he simply sneers with his arms crossed looking the other way.

Another student walks up to him, with her dog on her shoulder.

"Not bad, despite you never saying anything you are sure to be expressive with the way you move."

"Nothing for me to say besides I do what's expected. This light work, I've seen you operate so you must agree." Walking past her, she just shrugs while feeding her dog a snack.

Hearing who's next on the lineup, it would be his rival, Minato Namikaze.

Just like that, he also hit every target which isn't shocking. Minato is the only classmate he considers to be a challenge.

The day would go on, but by the end of the day something interesting would happen.

Hearing a commotion by one of the streets in konoha, he see's Mikoto and Fugaku getting cornered by some thugs.

"What did I tell you punks the next time I see y'all?" The boy appears to be 12 years of age with three other kids around the same age.

Fugaku, protecting Mikoto standing in front of her, in a defensive stance.

"I told you, we have every right to pass this section of the village. You have no right to harass us."

"Hah, kid just because your father is the chief of the police force doesn't mean you have special privileges."

'Not good' He thought before intervening.

Stepping from the side of the interaction, all of them looked at the boy, while the two students looked shocked, the group of bullies looked slightly shook.

"It's Lord Third son!" Yelled one of the bullies.

"Who cares? Third ain't here to protect him, might teach him a lesson, heard he's an arrogant punk."

Mukai didn't care, he was just ready to teach these jerks a lesson.

"Hey, what are you doing!? I can handle it!" Complained Fugaku.

Ignoring him, focuses on the others.

One charges at him, but is quickly dealt with as Mukai flips his hand down, then leg sweeps him causing the assailant to get knocked out.

The other two burst, one swinging a bat but Mukai jumps and avoids the swing as he leaps over and activates his byakugan, targeting his weak points, paralyzing him.

Before the third guy made his move, he stopped in fear.

Not believing a kid has this much power.

"So, are you going to dance or just stand there? If not, I suggest you take those two and leave."

His young voice sounded menacing. The man takes heed and grabs the other two before running from the scene.

Deactivating his byakugan, walking back towards his home, not bothering to say anything to the two other classmates.

Mikoto, shaken up, utters out her thanks, "Thank you, Mukai-kun!"

Upset that he was shown up by the half blood hyuga and uchiha, he runs up a little behind Mukai.

"I didn't need your help, I could have taken them on." Then the boy stopped for a second.

"Then why didn't you? I clearly saw your legs were shaking, it's said you're some type of genius yourself, son of the chief of the uchiha police force but everything I've seen from you is mediocre."

Fugaku, angered but knew it was true, put up a front but in reality he was relieved Mukai stepped in.

"Instead of being prideful, you should take this as a lesson to get stronger, so next time you won't need any help."

His last words daunted not just Fugaku but Mikoto as well, with that he continued walking off.

Mukai and the rest of the academy will continue to grow, through efforts alone, this class will be one of the most talented crop of students in Konoha history.

3 years later

On this day, it'll be the moment of truth, Mukai Sarutobi's growth coming to full circle, he's at the level now where his father and the other higher ups believe it's time for him to become a genin.

"Sarutobi sensei, I believe someone as talented as the brat is truly capable of becoming chunin right away."

"I know this Orochimaru, but someone like Mukai-kun isn't the best to rank up so quickly, the fact he's graduating this earlier already swells up his head, but I must admit he's already so dangerous."

Sitting in his office, going over reports with his student.

"Age five, he mastered the gentle fist, then at age seven he awakened the sharingan. Dual user of both bloodlines, soon it'll be time again for both clans to force another meeting but this time it won't be diplomatic."

Intrigued as he watches the boy training, licking his lips internally, seeing a genius of this magnitude.

"If you need me to handle some members behind the scenes, I can sensei."

Shaking his head, "No Orochimaru, I'll handle it when the time comes. I already have an idea in mind."

"I see, that's why you're going to assign him to me, correct?" Hiruzen nods his head.

Jiraiya got his own personal request for who will be on his team, while Tsunade is busy running the hospital in Konoha, so Orochimaru is the best choice to be placed as his adopted son sensei.

Besides, Mukai probably would throw a fit if his sensei isn't one of Sarutobi students or the white fang.

"I trust you can keep him grounded, plus Mukai teammates also will fit best with the way you operate."

Orochimaru grabs the reports on his genin squad before heading out to meet with the other jonin.

"I'm sure Orochimaru will have a twisted satisfaction on his genin, Tsunade not so much."

Hours have passed since their conversation, the instructor in the academy is here to promote some of the students into genin, some of the kids are happy getting their promotion to officially become ninja.

Sitting in their assigned seats, those who are now genin have their headbands, waiting to see the teams they're assigned to.

Mukai, the youngest who's graduating, his hair is now sitting by his neck, wearing a black shirt, tan pants, black sandals with wrist bandages and one elbow pad on his left elbow.

Seeing Minato come in, he wonders which team he'll be assigned to.

Then what next came to his mind was seeing Fugaku, those two never got along even though it's more of Fugaku's problem than his.

"Troubled?" Tsume asks while her dog Kuromaru is sitting on her head.

Shaking his head, "Bored to be honest." Won't admit it but he's very anxious to see who he will be paired with.

"Hah, don't get too bored, you might be paired with someone you hate or even enjoy." Kuromaru barks in agreement before he snuzzles on his owner's head.

As the talking starts to cease as the instructor comes in through the door.

"Welcome, I'm glad to see you all waiting. Now, here are the teams that's going to be assigned."

"Team six, Dekai, Hiashi Hyuga, and Minato Namikaze. Y'all sensei is Jiraiya-sama."

The reaction is pretty noisy, those who knew Minato aren't too surprised that Jiraiya is his sensei.

His rival found the pairing interesting, to be honest he wasn't too shocked, Jiraiya never really interacted with him, despite a few hello's.

"Next is Team four, Choza Akimichi, Shikaku Nara, and Inoichi Yamanaka."

Ino-Shika-Cho is in full effect.

"Team three, Mukai Sarutobi, Tsume Inuzuka, and Nawaki Senju, y'all sensei is Orochimaru."

Looking over at Tsume who gives off a wink, he just ignores that gesture but now he's assigned with Nawaki on the same squad.

Both stared at each other for a moment, never really interacting, he finds Nawaki quite weak.

Now, Orochimaru as his sensei is something he is content with.

In the room watching the students they are assigned to.

"You got Tsunade's little brother too, you know hime going to strangle you if you put him through your twisted training methods."

Eyes closed, "He'll be fine, just need to push the reason why Mukai-kun is on the same team."

"That'll be interesting, guess we'll see which one will come out better."

Jiraiya fist bumps his rival/teammate.

"We shall." He finishes by licking his lips.

A/N:

Alright guys hope y'all enjoy reading, I was originally going to treat this as a information dump chapter but figured all will be revealed as the story goes on, if anyone don't know Mukai, he's a character in Itachi's novel, but of course I changed a couple of things, figured he'll reincarnate to someone that has that much potential.

Now, for the next chapter or two it'll show his development when he's a genin, for his tracking he'll have progressed quite quickly so treat these chapters more as a flashback, I would love to skip when he's older but need to establish his relationships and character development more.

Once again thank you for reading and if you have any questions you can be free to dm me.